<template>
	<view class="login-container">
		<uni-icons type="contact-filled" size="100" color="#AFAFAF"></uni-icons>
		<button type="primary" class="btn-login" open-type="getUserInfo"  @getuserinfo="getUserinfo">一键登录</button>
		<text class="tips-text">登录后尽享更多权益</text>
	</view>
</template>

<script>
	import { mapMutations,mapState} from 'vuex'
	export default {
		name:"my-login",
		data() {
			return {
				token : 'abc147258369jkl'
			};
		},
		computed:{
			...mapState('m_user',['redirectInfo']),
		},
		methods:{
			...mapMutations('m_user',['updateUserInfo','updateToken','updateRedirectInfo']),
			// 用户授权之后获取用户的基本信息
			getUserinfo(e){
				if(e.detail.errMsg === 'getUserInfo:fail auth deny') return uni.$showMsg('您取消了登录授权！')
				this.updateUserInfo(e.detail.userInfo)
				// console.log(e.detail.userInfo)
				this.getToken(e.detail)
			},
			async getToken(info){
				// 获取code对应的值
				const  [err,res] =await uni.login().catch(err=>err)
				if(err || res.errMsg !== 'login:ok') return uni.$showMsg('登录失败！')
				 console.log(res)
				// 准备参数对象
				  const query = {
				    code: res.code,
				    encryptedData: info.encryptedData,
				    iv: info.iv,
				    rawData: info.rawData,
				    signature: info.signature
				  }
				  // 换取 token
				const { data: loginResult } = await uni.$http.post('/api/public/v1/users/wxlogin', query)
				  console.log(loginResult)
				 if (loginResult.meta.status !== 200) {
					 uni.$showMsg('登录成功')
					  uni.setStorageSync('token',this.token);
					  this.updateToken(this.token)
					  this.navigateBack()
				 }
			},
			navigateBack(){
				if(this.redirectInfo && this.redirectInfo.openType==='switchTab'){
					uni.switchTab({
						url:this.redirectInfo.from,
						complete: () => {
							this.updateRedirectInfo(null)
						}
					})
				}
				
			}
			
		}
	}
</script>
<style lang="scss">
.login-container{
	 // 登录盒子的样式
	  height: 750rpx;
	  display: flex;
	  flex-direction: column;
	  align-items: center;
	  justify-content: center;
	  background-color: #f8f8f8;
	  position: relative;
	  overflow: hidden;

	&::after{
		content:' ';
		display: block;
		width: 100%;
		height: 40px;
		background-color: white;
		position:absolute;
		bottom: 0;
		left: 0;
		border-radius:100%;
		transform: translateY(50%);
		
	}
	.btn-login{
		width: 90%;
		border-radius: 100px;
		margin: 15px 0;
		background-color: #C00000;
	}
	.tips-text{
		font-size: 12px;
		color:gray;
	}
}
</style>